Thread guiding device



Dec. 12,1939. J. BRUSSELL 2,182,940

THREAD GUIDING DEVICE Filed Sept 9, 1958 INVEIjTOR) JA (08 BR UJJELLATTORNEY.

'5 structure and also .1 further provided a frame mounted upon 49 spoolsand fed downwardly into Patented Dec. 12, 1939 UNi'rso stains 2,182,940THREAD- eprnruo. DEVICE Jacob Brussell, New York, N. Y. ApplicationSeptember 9, 1938, Serial No. 229,054 8 Claims. or. 112 m) The presentinvention is directed to multiple needle sewing machines, moreparticularly to means for guiding a plurality of threads simultaneouslyto the machine.

The present application is a continuation-i11 part of my co-pendingapplication Serial No. 152,401, filed July 7, 1937, and entitledMultiple needle sewing machines. In the aforesaid application, I havedescribed and claimed a new and F7 useful structure of a multiple needlesewing ma.-

chine in which a large number of needles may be mounted within a verylimited space without interference with the functions of the normalsewing machine. In order to accomplish this, Various important changesin the construction of such sewing machines are necessary, and suchconstructions are set forth and claimed in the afore said application.Among the elements there described is a thread-guiding andthread-pulling mechanism, whereby when the sewing operation iscompleted, all the threads may be simultaneou sly loosened and thusminimize danger of breakage.

The present application is directed to said to the means for mounting aplurality of spools and guiding the thread in order to avoidentanglement of the various threads, and atthe same time to allow theready, easy and positive feeding of threads to theplurality of needles.

In accordance with the present inventiomthere is provided a sewingmachine mounted upon a bed, as usual, and provided with a plurality ofneedles and associated mechanisms. There is said bed and carrying aconsiderable number of spindles or the like on which spools of threadmay be mounted. Said frame also carries guiding means whereby thethreads may be removed from the anism. Mounted upon said frame is aseries of tension devices such as are common in machines of thischaracter, through which the threads pass on their way to the sewingmechanism.

In the accompanying drawing, constituting a part hereof, and in whichlike reference characters indicate like parts:

Fig. 1 is a front elevational view of a sewing machine having theimprovements of the present invention; and I r Fig. 2 isacross-sectional view thereof taken along the line 22 of Fig. 1.

The bed. I of the sewing machine has mounted thereon a standard 2bearing an overhanging arm 3 in a substantially horizontal position andthe sewing mechterminating in a sewing head 4. The machine is providedwith a plurality of laterally arranged needles associated with theremainder of the :ewing mechanism, as more particularly set forth in theabove-identified co-pending application.

Secured to the bed of the sewing machine at the edge thereof is a frame6 extending upwardly a substantial distance. At an intermedion thereofis a shelf 'l carrying rows of dies- 8 and 9, respectively, arranged instaggered relationship. Each of these spindles cara spool if.) ofsuitable thread. The purpose of the plurality of rows and the staggeredrelationship is to provide a maximum of spools of thread in a minimlunof space. The upper front edge ii of frame ii is provided wtih aplurality of openings 5 equal in number to the number of spindles d and5*. Thread from each of the spools it passes upwardly through one of theopenings i2, reversing its direction and passing downward- 4 r,

as shown. at it, and through corresponding openings in bar M, secured tothe arms #5. I

Secured to the shelf 7 is a series of bars It,

- extending forwardly and downwardly, and terminating in a substantiallyhorizontal bar 67. Mounted on the bar are the usual tension devicesequal in number to the number of spindles. The thread it, after passingthrough the openings in i l, passes through the individual tensions andsaid threads then are caused to extend downwardly and converging to thehead 4 of the sewing machine.

On the head is provided a guide 59 of relatively small width compared toguides H and M and bar ll, buthaving a corresponding number of openings.Said guide is mounted on the upper part of the sewing machine head bybracket 21 A similar guide 25 is mounted by bracket 22 on the lower partof the head 2, the width thereof being approximately equal to the widthof the multiple needle bar carrying needles 5. Thereby, the threadspassing downwardly from guide i9 through guide 2! are in substantiallyparallel relationship and distance apart for passing through the eyes ofthe needles. Thereby, entangling of threads during the sewing operationis substantially eliminated.

There is provided a rod 23 in a substantially horizontal position, saidrod the plurality of threads passing between guides 19 and El, andlocated at a point intermediate said guides. The inner end of said rodis provided with a downwardly extending arm 24 which terextending behindspaced approximately the correct frame 6 by I 2. minates in a bar 25substantially parallel with red 23. Said bar is secured in the standard2 in such a manner as to allow oscillation thereof. At point 26 on theinner end of rod 23 is provided a spring 21, the opposite end of whichis secured to the sewing machine and tends to hold the rod 23 in theposition shown in Fig. 2.

In operation, the thread is caused to pass from each of the spools i9,upwardly in a practically vertical path for a substantial distance. Thisinsures that the thread may leave the spools freely without becomingknotted or entangled, and in the passage upwardly said threads becomesubstantially straightened. The threads, on passing downwardly, as shownat It, are kept adequately spaced and the movement is such as to avoidbreaking of the thread and sharp changes of directions. After thethreads have passed through the tensions on bar l'l, they are caused toconverge towards the sewing head, as shown at MS, and the guide ill isusually made arcuate in shape in order to facilitate the entrance of thethreads into guide l9 while at the same time keeping them sufiicientlyapart so as to avoid any possible entanglement. Then the threads passthrough guide 28 which is the final guide, giving the final direction tothe threads so as to enter the needles without any interference. When itis desired to loosen the threads, as is common in sewing operations, theoperator grasps rod 23 or arm 25 and pulls the same forward, whereby therod 23 pulls all of the threads between guides l9 and 2!. Because of thepresence of said guides, the position of the threads, both above andbelow the same, is maintained, and thus even during the looseningoperation there is no danger of the threads becoming entangled. When thedesired amount of loosening has been accomplished, the operator merelyreleases the rod 23 and it springs back into position for a subsequentoperation.

Although I have described my invention, setting forth a singleembodiment thereof, it is apparent that the present invention is notlimited to the details of construction described. For example, the rod23, although shown in a horizontal position and being in the form of arod, may be in a different position and may take other forms. The exactmounting thereof may be varied to a large extent without departing fromthe ideas herein set forth. I have shown the various guides II, l4, l9and 2!, as well as tension bar IT, as being in substantially paralleland in horizontal positions. It is highly desirable that these positionsbe maintained, but it is, of course, possible to change the location ofthe various elements and even to have them aligned in a manner and notat all in horizontal or in parallel relations. For instance, the frame 6may be placed at one side of the bed I instead of in the rear thereof,but, of course, in such case additional guides or other means forbringing the thread to the needles must be provided. lhe guide is neednot be a single member but may consist of two substantially parallelguides, as shown at l9 and i9 in Fig. 2, secured to the head of themachine. These and other changes in the details may be made within thespirit of the pres ent invention, the scope of which is not to belimited except by the character of the claims appended hereto.

What I claim is:

1. In a sewing machine, a bed, a sewing head mounted thereon, a threadguide adapted to hold a plurality of threads secured to said head,thread tension means cooperating with said guide, a

thread pulling means comprising a rod in proximity to but out of contactwith said threads and transverse thereto, said rod being pivoted andmounted independently of the thread guiding and tension means, a springholding said rod in inoperative position, and means for manuallypressing said rod against said threads, the operation of said rodpulling all of said threads.

2. In a sewing machine, a bed, a sewing head mounted thereon, a threadguide adapted to hold a plurality of threads, said guide being securedto the head of said machine and being approximately parallel with thearm thereof, thread tension means cooperating with said guide, a threadpulling means comprising a rod in proximity to but out of contact withsaid threads and transverse thereto, said rod being pivoted and mountedindependently of the thread guiding and tension means, a spring holdingsaid rod in inoperative position, and means for manually pressing saidrod against said threads, the operation of said rod pulling all of saidthreads.

3. In a sewing machine, a bed, a sewing head mounted thereon, a threadguide adapted to hold a plurality of threads secured to the head of saidmachine, threat tension means cooperating with said guide, a secondsimilar thread guide secured below the first narned guide on said head,a thread pulling means mounted between said guides and adapted to bemanually operated to pull a plurality of threads simultaneously, saidthread pulling means being mounted independently of the thread guidingand tension means and being normally out of contact with said threads.

4. In a sewing machine, a bed, a sewing head mounted thereon, a threadguide adapted to hold a plurality of threads secured to the head of saidmachine, thread tension means cooperating with said guide, a secondsimilar thread guide secured below the first named guide on said head,'athread pulling means mounted between said guides and adapted to bemanually operated to pull a plurality of threads simultaneously, saidguides being approximately parallel with each other and with the arm ofsaid machine, said thread pulling means being mounted independently ofthe thread guiding and tension means and being normally out of contactwith said threads.

5. In a sewing machine, a bed, a sewing head mounted thereon, a threadguide adapted to hold a plurality of threads secured to the head of saidmachine, thread tension means cooperating with said guide, a needle armadapted to hold a plurality of needles, whereby a plurality of threadspass between said guide and arm, a thread pulling means mounted behindsaid thread between said guide and arm and adapted to be manuallyoperated to pull a plurality of threads simultaneously, said threadpulling means being mounted independently of the thread guiding andtension means and being normally out of contact with said threads.

6. In a sewing machine, a bed, a sewing head mounted thereon, a threadguide adapted to hold a pluralityof threads secured to the head of saidmachine, thread tension means cooperating with said guide, a needle armadapted to hold a plurality of needles, whereby a plurality of threadspass between said guide and arm, a thread pulling means mounted behindsaid thread between said guide and arm and adopted to be manuallyoperated to pull a plurality of threads simultaneously, said meansextending approximately parallel to the plane of said threads, saidthread pulling means being mounted independently of the thread guidingand tension means and being normally out of contact with said threads.

7. In a sewing machine, a bed, a sewing head mounted thereon, a threadguide adapted to hold a plurality of threads secured to the head of saidmachine, thread tension means cooperating with said guide, a needle armadapted to hold a plurality of needles, whereby a plurality of threadspass between said guide and arm, a thread pulling means mounted behindsaid thread between said guide and arm and adapted to be manuallyoperated to pull a plurality of threads simultaneously, said meansextending approximately parallel to the plane of said threads and beingpivotally mounted in the head of said machine, said thread pulling meansbeing mounted independently of the thread guiding and tension means andbeing normally out of contact with said threads.

8. In a sewing machine, a bed, a sewing head mounted thereon, a threadguide adapted to hold a plurality of threads secured to the head of saidmachine, thread tension means cooperating with said guide, a needle armadapted to hold a plurality of needles, whereby a plurality of threadspass between said guide and arm, a thread pulling means mounted behindsaid thread between said guide and arm and adapted to be manuallyoperated to pull a plurality of threads si1nultaneously, said meansextending approximately parallel to the plane of said threads, and aspring secured to said means for normally biasing the same intoinoperative position, said thread pulling means being mountedindependently of the thread guiding and tension means and being normally out of contact with said threads.

J. BRUSSELL.

